Answers:

1) Ba never has lunch at school.

2) What are you doing at the moment? - I am riding bicycle.

3) Have they played football since 2000? Yes, they have.

4) Kien wrote an email to Anne last night.

5) Where is Hoa now? She is in her bedroom.

Chúc học tốt!!!

1. Ba never has lunch at school.

- Có trạng từ tần suất tần suất "never"→ HTĐ 

- Tạng từ tần suất đặt trước động từ thường

- Tạm dịch "Ba chưa bao giờ ăn ở trường" 

2. What are you doing at the moment? 

- I am riding my bicycle. 

+) at the moment → HTTD ở dạng câu hỏi: (WH_q) + be + S + Ving +...? → Câu TL: S +be + ving

3. Have they played football since 2000?

- Yes, they have 

+) "since" → HTHT ở dạng câu hỏi: Have/ Has +S +VPii +...? → câu TL: Yes, S + have/ No, S+haven't 

4. Kien wrote an email to Anne last night. 

+) last night: QKĐ: S + Ved/C2 + ... 

+) write to sb

+) /i/ trong email là nguyên âm → dùng "an"

5. Where is Hoa now ? - She is in her bedroom.

Câu này ở HT: Be + S +...?